The data in this case is in the header under
google-charts: test1: data: ... options: ...
Using Import Plugin
Data is loaded into the header using the Import plugin and passed in the tag using options.
Data and options are passed as a JSON object contained by the tag. Also has the
left class assigned.
Timelines require a little extra attention. Use one of the "View Source" links at the top of the page to see the shortcode. Also see Google's documentation on serializing dates and times.